Olympic champions Marcell Jacobs and Karsten Warholm have had the door closed on their hopes of a wild card entry for next month's Diamond League finals in Zurich.
Jacobs, the 27-year-old Italian who won the 100m in Tokyo, has been kept out of the Diamond League this season by illness and injury but said after winning the European title last week that he wanted a chance to have a go at the best American sprinters.
Zurich's co-meeting director Andreas Hediger told AFP there was no way round the rules to allow either Jacobs or Norwegian 400m hurdles world record holder Karsten Warholm to compete in the climax to the season on September 7/8. Warholm's preparations for the world championships were also blighted by injury that restricted the Norwegian to the world championships -- he finished seventh -- and the European championships, where he won title.
Winners of each Diamond League discipline receive a trophy and $30,000.